If you had short orthologous gene sequences from a few diffe

If you had short orthologous gene sequences from a few different species, is there a different way you could determine gene sequences? a. The following sequences of an orthologous gene were aligned but the reading frame is unknown. What is the reading frame for these sequences? (i.e., Does the first complete codon begin at the first, second, or third nucleotide?) b. Using the chart at left and the amino acid abbreviations, translate the first eight complete codons of this gene for each species.

Solution

a. Reading frame is the exact part of DNA in which it under go Transcription and Translation. The start codons in mRNA are either AUG or GUG. In its DNA template, the codons look like TAC & CAC. All these genes first codons begins from Second nucleotide I.e CAC.

b. 1. Ant: VRDTDCLA

2. Beetle: VRDTNWLS

3. Fruit fly: VRDTECLA

4. Shrimp: VRETECLA